BotanyLansones is a tree growing to a height of 4 to
15 meters. Leaves are alternate, 20 to 40 centimeters long, with 5 to 7 leaflets,
oblong to oblong-elliptic, 7 to 18 centimeters in length, and pointed at both ends. Flowers are small,
yellow and borne on spikes, solitary or fascicled on the trunk or
larger branches. Fruit is yellowish-white, occurring in bunches on
a single stem, ellipsoid or globose, 2 to 4 centimeters long, with bitter seeds
that are surrounded by a translucent pulp (arillus). The outer skin is thin
and tough, abundant in a milky juice. The pulp occurs in five sections
with one well-developed seed.

Distribution- Cultivated for its fruit in Luzon, particularly the Quezon and Laguna Provinces, and occurs wild in Mindanao and Basilan.
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Also occurs in Indo-China, and the Malay Peninsula and Archipelago, in general cultivation.

ConstituentsThe rind yields 6% lansium
acid which is toxic.
The fresh peeling yielded a volatile oil, a resin, and some reducing
acids.
The resin is believed to be nontoxic and protective to the stomach
against alcohol.
The outer skin of the fruit is rich in tannin.
From the seeds, two toxic and bitter substances and traces of
an alkaloid.
The fruit pulp contains sucrose, saccharose, fructose and glucose.
Bark is astringent.
• Study isolated a new tetranortriterpenoid (Source)
• Study yielded five tetranoterpenoids, domesticulide A-E (1-5)
from the seed. The seed extract was rich in limonoids.
• Yields triterpenoid lansiolides with antimalarial activity.• Seeds yielded two tetranortriterpenoids, kokosanolide A (1) and C (2), together with 3 onoceranoid-type triterpenoid: kokosanolide B (3), 8,14-secogammacera-7,13-diene-3,21-dione (4) and a mixture of 8,14-secogammacera-7,14(27)-diene- 3,21-dione (5) and compound 4 isolated from the bark. (see study below) (13)

PropertiesBark is considered antipyretic and anthelmintic.

Parts
utilizedBark, fruit, leaves, seeds.

UsesNutritional-The fruit pulp is succulent and
delicious, and may be candied or preserved in syrup.
- Food value per 100 g of edible portion: Moisture 86.5 g; protein 0.8
g; carbohydrates 9.5 g, fiber 2.3 g; calcium 20 mg; phosphorus 30
mg; vitamin A 13 IU; thiamine 89 mcg; riboflavin 124 mcg; ascorbic
acid 1 mg.Folkloric- Decoction of bark and leaves used
for dysentery.
- Peel, rich in oleoresin, used for diarrhea and intestinal spasms.
- Crushed seeds used for fevers.
- Astringent bark used for dysentery and malaria.
- Powdered bark used for scorpion stings.
- Bark resin used for flatulence and gastrointestinal colic, for swellings,
and as antispasmodic.
- Grounded seeds mixed with water as vermifuge and antipyretic.
- Tincture prepared from the dried rind used for diarrhea and abdominal
colic.
- In Java. seeds are used as vermifuge and antipyretic.
- In Indonesia, used
for malaria.Cosmetics- Cosmeceutical value from its antioxidant,
moisturizing, whitening and lightening effects. Dry extract
of fruit, re-dissolved in propylene glycol is used for skin depigmentation
and as a moisturizer.Others- The dried fruit skins when burned
emit an aromatic smell which repels mosquitoes. It also makes a pleasant
room inhalant.
- The juice of the bark and fruit is recorded as used for poison arrow.